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Commit 214b8ffc authored by Stefan Haberland's avatar Stefan Haberland Committed by Martin Schwidefsky
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[S390] dasd: wait for terminated request 



After terminating a request in the dasd_sleep_on_immediatly function,
wait for the clear interrupt to be received before starting the
new request. This prevents the requests from getting mixed up.

Signed-off-by: default avatarStefan Haberland <stefan.haberland@de.ibm.com>
Signed-off-by: default avatarMartin Schwidefsky <schwidefsky@de.ibm.com>
parent 3948a102

drivers/s390/block/dasd.c

+5 −1
Original line number Diff line number Diff line
@@ -2261,7 +2261,11 @@ int dasd_sleep_on_immediatly(struct dasd_ccw_req *cqr) 
	cqr->callback = dasd_wakeup_cb;

	cqr->callback_data = DASD_SLEEPON_START_TAG;

	cqr->status = DASD_CQR_QUEUED;

	list_add(&cqr->devlist, &device->ccw_queue);

	/*

	 * add new request as second

	 * first the terminated cqr needs to be finished

	 */

	list_add(&cqr->devlist, device->ccw_queue.next);



	/* let the bh start the request to keep them in order */

	dasd_schedule_device_bh(device);